https://bugs.freedesktop.org/show_bug.cgi?id=52330
--- Comment #4 from Michel Dänzer <mic...@daenzer.net> 2012-07-31 17:50:18 UTC --- (In reply to comment #2) > When there is a software fallback the pixmap where fallback has to be handled > has to be migrated into CPU accessible memory and the larger the pixmap, the > more data has to be migrated. That's why it's more noticeable when you have a > larger desktop. That doesn't explain why switching to a smaller (or supposedly even bigger?) desktop and back, or even just re-setting the (supposedly) same size, seems to improve performance. Submitter, can you attach your xorg.conf file? It seems like you're using rotation, maybe that isn't taken into account correctly for the initial front buffer size: (II) RADEON(0): Front buffer size: 40000K That matches 2560x1600 + 2*1920x1080, not + 2*1080x1920. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ xorg-driver-ati mailing list xorg-driver-ati@lists.x.org http://lists.x.org/mailman/listinfo/xorg-driver-ati